McJediProbie wrote:
Kuvira executes Bolin as punishment for one of his inevitable fuck-ups.

No change in final outcome.

I don't know, to me Bolin wouldn't have left Kuvira if the arguing on Zaofu went REALLY bad and he ended up (without really meaning it) to brake up with Opal so for the anger and the heartbrake he wouldn't worry of what happens to the cityes when they leave (and that Kuvira's crazy) but he might find out later (even if for axcident) and go back to Republic city and warn about the attack and MAYBE same ending or not find out and end up fighting his friends
(Sorry if my English is bad)